Matching Sentence Endings Strategies Tips Techniques
Write the correct letter; A-G, in boxes 27-30 on your answer sheet
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Day 2 Matching Sentence Endings (Explanation )
Write the correct letter; A-G, in boxes 27-30 on your answer sheet.
1. Many animals in the Pleistocene 2. Australian magafauna became extinct 3. The figure for 45 kyr refers to 4. OSL represented A. Surprisingly swiftly B. Optically stimulated luminescence C. Over a long period of time D. Considerably lager than their modern equivalents E. The data of megafaunal disappereance F. Human habitation of Australia G. A breakthrough in dating technology Exercise 2 : Keep taking the tablets The history of aspirin is a product of a rollercoaster ride through time, of accidental discoveries, intuitive reasoning and intense corporate rivalry. Its properties have been known for thousands of years. Ancient Egyptian physicians used extracts from the willow tree as an analgesic, or pain killer. Centuries later the Greek physician Hippocrates recommended the bark of the willow tree as a remedy for the pains of childbirth and as a fever reducer. But it wasn't until the eighteenth and nineteenth centuries that salicylates the chemical found in the willow tree became the subject of serious scientific investigation. The race was on to identify the active Ingredient and replicate it synthetically. At the end of the nineteenth century a German company Friedrich Bayer & Co. succeeded in creating a relatively safe and very effective chemical compound, acetylsalicylic acid, which was renamed aspirin. The late nineteenth century was a fertile period for experimentation, partly because of the hunger among scientists to answer some of the great scientific questions, but also because those questions were withintheir means to answer. But an understanding of the nature of science and scientific inquiry is not enough on its own to explain how society innovates. In the nineteenth century, scientific advance was closely linked to the industrial revolution. This was a period when people frequently had the means, motive and determination to take an idea and turn it into reality. In the case of aspirin that happened piecemeal - a series of minor, often unrelated advances, fertilised by the century's broader economic, medical and scientific developments , that led to one big final breakthrough. The link between big money and pharmaceutical innovation is also a significant one. Aspirin s continued shelf life was ensured because for the first 70 years of its life, huge amounts of money were put into promoting it as an ordinary everyday analgesic. In the 1070s other analgesics, such as ibuprofen and paracetamol, were entering the market, and the pharmaceutical companies then focused on publicising these new drugs . But just at the same time, discoveries were made regarding the beneficial role of aspirin in preventing heart attacks, strokes and other afflictions. Download 0.81 Mb. Do'stlaringiz bilan baham: |
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